Machine for scouring and hulling buckwheat



J. N. TREADWELL.

Buckwheat Cleaner.

.Patented Sept. 27, 1859.

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PATENT ()FFICE.

JOSEPH N. TREADIVELL, OF BEDDING, CONNECTICUT.

MACHINE FOR SCOURING AND HULLING BUCKWI-IEAT.

Specification of Letters Patent 25,593, dated September 27, 1859.

T 0 all whom it may concern:

Be it known that I, J OSEPH N. TBEADWELL, of Bedding, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Machines for scouring and Hulling Buckwheat and other Grain; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, in which Figure 1, represents a perspective view of said scouring and hulling machine. Fig. 2, represents a perspective view of the same machine, as seen from the reversed side of Fig. 1.

The nature of my improvements relates to the arrangement of the huller scouring cylinders, conveyers', and hoppers, by means of which the operation can be performed efiectually, and with a proportionally small amount of labor and time.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A, represents the frame of the machine.

B, represents a hopper by which the grain to be hulled is fed in.

C, represents an elevator of the ordinary construction, by which the grain is conveyed into the cylinder D. The cylinder D, is made of coarse wire cloth, one half of it being made of finer wire, and the openings between them of a smaller size than in the other half for purposes hereafter described.

E, represents a hopper through which the grain is fed to the huller F; the latter is of the usual description and does not require any further explanation.

G, is an elevator, which conveys the grain from the huller to the second scouring cylinder H, which like the cylinder D, is made of two sections of wire cloth, of differentsize, one having smallermeshes than the other but the openings in both, being smaller than those of the respective sect-ions in the cylinder D.

I, represents a hopper which is secured to the frame under that part of the cylinder H, which is made of coarse wire cloth; it is intended to receive the hulled and clean buckwheat, which is then carried off through the spout or pipe as.

K, represents a hopper which receives the partially hulled buckwheat, which escapes at the end of the cylinder H, and which runs into one of the hoppers L, or. N, by passing through the spout or pipe I), and thence through spout (Z; the spout (Z, is secured to the shaft 0, which has its bearings at g, in the sides of the hoppers L, N, and which can be turned by means of the handle h,

thus enabling the operator to give to the spout (Z, an inclination toward either of the hoppers L, or N, thus causing the grain to run from the hopper K, into either of these two hoppers. The hoppers L, and N, are separated from each other by a partition P, made of strong cloth.

Q, represents the drum of a revolving fan blast, which is driven from the pulley R; the blast generated by it, is led by means of the pipes 70 and mto the lower sides of the hoppers K and I, at the places where the grain escapes from said hoppers, and effectually cleans it from all light impurities, which may not have been separated from it and the cleaned grains are now driven out through the pipes (a and I).

The scouring cylinders D, and H, are mounted respectively on the shafts n, and p, and are driven by the pulleys q and 7".

The operation of the machine is as follows :The buckwheat is fed into the machine through the hopper B, and is thence carried by the conveyer G, into the cylinder D, rotary motion being given to the cylinder D by power applied to the pulley q, the grain by the slight inclination of said cylinder passes toward the hopper E. The open ings in the fine wire cloth of said cylinder are of such a size, as not to let escape any buckwheat or grain to be cleaned,'but all the finer impurities and seed escape through said screen, while the buckwheat escapes through the openings in the coarser screen and into the hopper E, and the gravel or impurities coarser than the buckwheat escape through the open end of the cylinder D, and are run off. The buckwheat now passes down into the huller F, and when gone through the operation of hulling, it is carried up into the cylinder H, by means of the conveyer Gr; here by the revolution of said cylinder, all the fine stuff adhering to the hulled buckwheat escapes through the smaller apertures while the hulled buckwheat itself passes through the coarser wire cloth, into the hopper I, and escapes through the pipe a, it being operated upon by the blast passing through pipe m, which effectually cleans it from all light impurities. The unhulled or partially hulled buckwheat passes out by the end of the cylinder H, and into the hopper K, thence through pipe 6, into the spout d, and into one of the hoppers L, N, it being during its passage operated upon by the blast coming through pipe is. The hoppers L, and N, are closed at their bottoms by slide valves; When one of the hoppers is full, the valve at its bottom is opened, and the spout d, is so turned, that the unhulled buckwheat Will pass into the adjoining hopper; the motion of the cylinder D, is 110W arrested, and the grain passes through one of the spouts S, and T, into the hopper E,

to undergo once more the operation of hulllng.

By other grains I mean to include rice, as Well as all other grains or seeds which require hulling, scouring or cleaning.

Having thus fully described the nature of my invention What I claim therein as new, and desire to secure by Letters Patent is:

The arrangement of the revolving and graduated screens With the hoppers, conveyers, blasts, and conductors, in the manner, and for the purpose herein described.

JOSEPH N. TREADWELL.

Witnesses:

THos. B. FANTON, JARED OLMSTEAD. 

